ISL97686 查看數據表（PDF） - Renesas Electronics

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产品描述 (功能)

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ISL97686

4-Channel LED Driver with Independent Channel Control for Dynamic Dimming

Renesas Electronics 

ISL97686

Typical Performance Curves (Continued)

V_IN

V_OUT

V_LX

V_IN

V_OUT

V_LX

I_CH

FIGURE 10. START-UP (NON VSYNC MODE, VIN: 19V, ICH: 120mA,

LEDs: 4P18S, fDIM: 200Hz)

I_CH

FIGURE 11. START-UP (NON VSYNC MODE, VIN: 19V, ICH: 120mA,

LEDs: 4P14S, fDIM: 200Hz)

V_IN

I_CH

V_OUT

V_LX

V_OUT

V_LX

V_CH

I_CH

FIGURE 12. START-UP (NON VSYNC MODE, VIN: 19V, ICH: 120mA,

LEDs: 4P10S, fDIM: 200Hz)

FIGURE 13. PWM DIMMING (VIN : 19V, ICH: 120mA, LEDs: 4P14S,

fDIM: 200Hz)

V_/CS

DIMMING DATA OF IC #2

V_SDI

V_CLK

DIMMING DATA OF IC #1

V_SDO

DIMMING DATA OF IC #2

FIGURE 14. TIMING OF SPI INTERFACE (TWO ICs DAISY CHAINED,

CS: 120Hz, CLK: 390kHz, fDIM: 200Hz)

FN7953 Rev.1.00

Sep 19, 2017

V_/CS

V_SDI

V_CLK

I_CH

FIGURE 15. MINIMUM PWM DIMMING DUTY CYCLE 0.1% (VIN: 19V,

ICH: 120mA, LEDs: 4P14S, fDIM: 200Hz)

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